We all know that Porsche 911 is a pretty sporty car with engine performance that can easily compete with any other vehicle in the same class. But what if this popular model that develops around 530 horsepower in GT2 version is upgraded to more than 1000 horsepower? Well, Oberlin,Ohio-based tuner Switzer Performance Innovations has just announced a new tuning package called Sledgehammer that can increase the overall power of the 911 Porsche to over 1000 hp....

Source: Tuning - AutoEvolution